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Cockles

Estuarine Ecodiagnostics

Date: April 02, 2009
National Centre:

Monitoring the impact of urban development on estuary ecosystems. Read more about Estuarine Ecodiagnostics

1 - 7 of 7 [Coasts - Research Projects] listings

Members of the Whangarei harbour kaitaiki roopu monitoring transplanted seagrass in Whangarei harbour.

Restoration of seagrass beds in Whangarei Harbour

Date: November 26, 2009

Seagrass beds form an important undersea habitat for small fish, seahorses and shellfish in New Zealand. A large amount of New Zealand’s seagrass habitat has been lost as a result of human activities, with only small pockets remaining in some harbours. NIWA is leading a small-scale transplantation trial in Whangarei Harbour to determine whether transplanted seagrass can survive, and hopefully thrive, at a former site.

Mudbanks, Mangemangeroa Estuary, Auckland

Predicting long-term sedimentation and heavy metal accumulation in estuaries

Date: November 10, 2009

NIWA has developed an Urban Stormwater Contaminant (USC) model to enable urban planners to predict sedimentation and heavy metal accumulation in estuaries and identify problem areas in order to target mitigation measures. The model supports decision making by predicting contaminant accumulation under various catchment development scenarios over 50-100 year timescales.

Harvesting barge ready for unloading (Clevedon Coast Oysters). (Photo: Mal Green)

Contamination early-warning system for commercial shellfish harvest

Date: August 26, 2009

Contamination of shellfish by faecal microbes is a health hazard to the consumer and so is of particular concern to the commercial producer. NIWA scientists have developed a model to predict shellfish contamination using a ‘neural network’ – a tool that has become increasingly popular for predicting the behaviour of complex systems.

Auckland Habour Bridge

Predicting long-term contaminant accumulation in the central Waitemata and southeastern Manukau Harbours

Date: August 06, 2009

This project was undertaken for Auckland Regional Council to identify significant sources of contaminants in the central Waitemata and southeastern Manukau Harbours. The efficacy of stormwater treatment and contaminant source control measures were also assessed.

Cockles

Estuarine Ecodiagnostics

Date: April 02, 2009

Monitoring the impact of urban development on estuary ecosystems.

Mussel farm in Pelorus Sound

Sustainable Aquaculture

Date: March 18, 2009

Coastal aquaculture provides one of New Zealand’s biggest opportunities to generate new wealth from the primary production sector. However, uncertainty about the effects such expansion might have on the environment is a major impediment to realising this potential.

Physical Hazards Affecting Coastal Margins and the Continental Shelf

Date: March 13, 2009

This programme is about providing improved knowledge of the causes and potential consequences of coastal hazards in New Zealand, and how often they might pose a threat.

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